O F S I L K. 193 



prefs again ft it in the place where a moth 

 was to come out, which is ahvays through 

 one of the ends of the filkball j for which 

 reafon alfo, in threading tiicni you fliould 

 have run the thread acrols the fide, that 

 the two ends of the ball may not bear upon 

 one another i and if you had hung the 

 firing upon two nails about three inches 

 afunder, the fides of it would not touch 

 one another, fo as to hinder the eruption 

 of the moth. 



The moths generally come out in the 

 morning, and cling with their feet to the 

 outfide of the balls j fome odd ones may- 

 chance to fall, and if the place is fubjedi: 

 to have rats or mice they will deflroy them 5 

 cats will alfo infallibly kill them. To pre- 

 vent any accidents, you may place a ftrip 

 of paper under each firing of balls, which 

 will receive thofe which fall. 



When you choofe the balls for breed, I 

 advifed the putting the males and females 

 on feparate threads, becaufe if they were 

 on the fame, they would begin to flutter 

 about and couple as foon as they carne 

 out, and would hinder that regularity 

 which you fhould obferve in putting them 

 together. You may chance indeed to mif- 



O take 



